package com.cj;

public class Demo {
    public static void main(String[] args) {
        Dog dog=new Dog();
        Student student = new Student();

        System.out.println(dog.equals(student));
        System.out.println(dog.hashCode()!=student.hashCode());
        System.out.println(666);
        System.out.println(121212);
        System.out.println("这是提交文件");
    }
}
